package com.ruoyi.system.service.impl;

import cn.hutool.core.bean.BeanUtil;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.common.core.page.TableDataInfo;
import com.ruoyi.common.core.domain.PageQuery;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import lombok.RequiredArgsConstructor;
import org.springframework.stereotype.Service;
import com.ruoyi.system.domain.bo.ClassBo;
import com.ruoyi.system.domain.vo.ClassVo;
import com.ruoyi.system.domain.Class;
import com.ruoyi.system.mapper.ClassMapper;
import com.ruoyi.system.service.IClassService;

import java.util.List;
import java.util.Map;
import java.util.Collection;

/**
 * 班级信息Service业务层处理
 *
 * @author ruoyi
 * @date 2025-06-30
 */
@RequiredArgsConstructor
@Service
public class ClassServiceImpl implements IClassService {

    private final ClassMapper baseMapper;

    /**
     * 查询班级信息
     */
    @Override
    public ClassVo queryById(Long classId){
        return baseMapper.selectVoById(classId);
    }

    /**
     * 查询班级信息列表
     */
    @Override
    public TableDataInfo<ClassVo> queryPageList(ClassBo bo, PageQuery pageQuery) {
        LambdaQueryWrapper<Class> lqw = buildQueryWrapper(bo);
        Page<ClassVo> result = baseMapper.selectVoPage(pageQuery.build(), lqw);
        return TableDataInfo.build(result);
    }

    /**
     * 查询班级信息列表
     */
    @Override
    public List<ClassVo> queryList(ClassBo bo) {
        LambdaQueryWrapper<Class> lqw = buildQueryWrapper(bo);
        return baseMapper.selectVoList(lqw);
    }

    private LambdaQueryWrapper<Class> buildQueryWrapper(ClassBo bo) {
        Map<String, Object> params = bo.getParams();
        LambdaQueryWrapper<Class> lqw = Wrappers.lambdaQuery();
        lqw.like(StringUtils.isNotBlank(bo.getClassName()), Class::getClassName, bo.getClassName());
        lqw.eq(StringUtils.isNotBlank(bo.getGrade()), Class::getGrade, bo.getGrade());
        lqw.eq(StringUtils.isNotBlank(bo.getMajor()), Class::getMajor, bo.getMajor());
        lqw.eq(bo.getAdviserId() != null, Class::getAdviserId, bo.getAdviserId());
        lqw.eq(StringUtils.isNotBlank(bo.getClassroom()), Class::getClassroom, bo.getClassroom());
        lqw.eq(bo.getStudentCount() != null, Class::getStudentCount, bo.getStudentCount());
        return lqw;
    }

    /**
     * 新增班级信息
     */
    @Override
    public Boolean insertByBo(ClassBo bo) {
        Class add = BeanUtil.toBean(bo, Class.class);
        validEntityBeforeSave(add);
        boolean flag = baseMapper.insert(add) > 0;
        if (flag) {
            bo.setClassId(add.getClassId());
        }
        return flag;
    }

    /**
     * 修改班级信息
     */
    @Override
    public Boolean updateByBo(ClassBo bo) {
        Class update = BeanUtil.toBean(bo, Class.class);
        validEntityBeforeSave(update);
        return baseMapper.updateById(update) > 0;
    }

    /**
     * 保存前的数据校验
     */
    private void validEntityBeforeSave(Class entity){
        //TODO 做一些数据校验,如唯一约束
    }

    /**
     * 批量删除班级信息
     */
    @Override
    public Boolean deleteWithValidByIds(Collection<Long> ids, Boolean isValid) {
        if(isValid){
            //TODO 做一些业务上的校验,判断是否需要校验
        }
        return baseMapper.deleteBatchIds(ids) > 0;
    }
}
